Central retinal artery occlusion

"Tear drop" or "blood level in sinus"

Blow out fracture

Failure to adduct, what is this condition and what causes it?

Pain on eye movement

Optic neuritis-most often caused by MS

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What is optic neuritis?

Optic neuritis (ON; see the image below) is a demyelinating inflammation of the optic nerve that often occurs in association with multiple sclerosis (MS) and neuromyelitis optica (NMO). A gradual recovery of visual acuity with time is characteristic of ON, although permanent residual deficits in color vision and contrast and brightness sensitivity are common.